Originally Posted by
spider-man
Don't forget the wheels.
Yes, you'll need a new set of wheels with a freehub that will accept a ten speed cassette (as opposed to the threaded freewheel that's probably on there now).
Also, depending on its age, your Raleigh may or may not have been built for 700c wheels. This means that when you fit your brand new wheels to that frame, those Ultegra calipers may not reach far enough to hit the braking surface. Thankfully, there are a range of longer reach brakes available from manufacturers like Tektro. Here's an example:
http://www.tektro.com/02products/10rb-1.php
Of course, if its built for 700c wheels in the first place, you'll be fine.
Finally, if they don't come with your group, you'll want some of these to cover up the downtube shifter bosses and route your shift cables.
http://www.lickbike.com/productpage....=%270588-00%27
Good luck!